Danger-gate



(No Model.) H. BODDIKER.

DANGER GATE. No. 402,799. Y Patented May 7, 1889.

UNITED STATES PATENT OFFICE.

HENRY BODDIKEROF CHICAGO, ILLINOIS.

DANG ER-GATE.

SPECIFICATION forming part of Letters Patent No. 402,799, dated May 7,1889.

Application led September 3, 1888. Serial No. 284,496. (No model.)

To all whom, it may concern;

Be it known that I, HENRY BODDIKER, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Danger-Gates, of whichthe following is a full and complete description.

My invention relates to that class of danger-gates adapted to be removedfrom a roadway or other passage-way when travel may safely be donethereon, and to be placed in position to obstruct the same when travelon said roadway is dangerous, or when from any reason it is desired tostop such travel.

The object of my invention is to obtain a danger-gate so constructed asto be easily removed from obstructing the street or roadway eitherautomatically when a draw-bridge or other moving thing on one side ofsaid danger-gate is moved, or by hand whenever, as from a passing trainor other cause, it is desired to operate said danger-gate; to obtain adanger-gate having a movement in such direction and of such a characterthat persons or things near said danger-gate shall be uninjured therebyeither in the opening or closing of the same, and to obtain adanger-gate which may be economically constructed, having but few parts,and not liable to get out of order or break.

I have illustrated my invention by the drm ings accompanying thisspecification and forming a part hereof, in which- Figure l is a sideelevation of my improved danger-gate in a closed position, as the samewould appear when placed before a swing or sliding draw-bridge, andarranged so as to be operated automatically bythe opening and closing ofsaid draw-bridge, and with a hand operating device attached to saiddangergate. Fig. 2 is a cross-section of my device, illustrating thedanger-gate open, also illustrating in cross-section a small portion ofthe end of a swing draw-bridge having a cam thereon by which thedanger-gate is opened in the shutting of the draw-bridge. Fig. 3 is afront elevation illustrating the danger-gate closed. 4 is a frontelevation of the righthand one-half of the cam as viewed, by which thedanger-gate is automatically operated in the movement of thedraw-bridge.

Like letters refer to like parts throughout the several views.

X. is a roadway or street.

Y Y are the sidewalks of the street.`

A A is my improved danger-gate.

A is that portion of the danger-gate over the roadway of the street, andA is that portion over the sidewalks.

B B are posts have guides therein. Gate A A is supported on posts B B,and its direction of movement is controlled by the said guides. y

D D are guides in post B. Guides D D are not necessarily of theparticular construction or direction illustrated in the drawings, beingvaried in direction to give any desired movement to gate A A. In thedanger-gate herein illustrated guides D D consist of slots extendingthrough posts B B.

E E are upright posts, forming a part of the frame-work of the gate A A.

F F are rollers in uprights E E, and are placed on the projection f,which is rigidly secured to uprights E E. rlhe purpose of the rollers FF being simply to reduce friction, they may be omitted, if preferred.

In order in a large gate that the distance between posts B B may not betoo great, I prefer to have the posts placed at about the(ilividing-line between the sidewalk and the roadway of the street, inwhich case I construct the guides D D ,Y as herein described andillustrated, as slots, and the projections f f extend entirely throughsaid slots, being rigidly secured to the posts E E on the gateframe 3but it will be evident that if the posts B B are placed at the line ofthe street, or near thereto, there would be no necessity of the guides DD forming a slot in the post B B.

G is a rotary rod turning freely in posts B B.

H H are arms or levers rigidly attached Ato rod G at one end and securedto gate A A at the other end by any suitable means, as by a rod andchain, h 7L.

In one form of construction illustrated and described herein therotatory rod G may be turned an indefinite amount, as when turned by theunwinding of cable K, which passes around or is wound upon drums K andJ, and when so arranged levers H I-I may have placed at the outer endthereof a segment of a circle, around which the chain passes, by whichmotion is transmitted from said levers H H to gate A A.

I is a lever rigidly secured to rod G, and 1T is a friction-roller insaid lever.

Drum .I is secured to rod G, and drum K is IOO turned freely in post Bby handle or crank 7c. Cable K is so placed on these drums that whenwound around drum K by turningl crank 7;v it is thereby unwound fromdrum J, rod G boing` thereby rotated in a direction to raise thedanger-gate through levers II II and connecting parts 7L 7L.

L is an end post of a draw-bridge, and M is a cam placed thereon andsecured thereto. Cam- M is shaped to come in contact with lever I orroller vL' therciii as the draw-bridge is opened and closed.

\Vhethcr my improved danger-gate be operated automatically by theopening and closing of the draw-bridge or by hand, as by the turning ofcrank 71:, I prefer to so construct it that it will assume the closedposition bythe attraction or' gravity, as t-hereby the weight of thegate would alone rest upon anything obstructing its descent.

In constructing my invention for use in connection or in unison with asliding' or swing draw bridge in the way hereinbefore described thedrums J -K and cable K may be omitted, and in adapting my invention foruse at a railroad-crossing or at other places where said gate is to beoperated by handle 7i:

it is evident that lever I and cam M, or theirl equivalent, may beomitted.

As hereinbefore stated, the guides D D may be of dilferentshape fromsaid guides, as illustrated in the drawings accompanying thisspecification; but when said guides are shaped a-s here illustrated theturning of rod G- and levers II from the position indicated in Fig. 1 tothe position indicated in Fig. 2 will cause gate A A to move upward froma closed position, therebyobstructing the roadway to an open position,as indicated in said Fig. 2. In its upward motion the upper end ofupright E E follows the direction of slotted guide I), and the lower endof the said gate moves in a direction determined bythe movement ofroller F in guide D and the position of said roller upward or downwardon uprights E E.

Vhen arranged substantially as herein described and illustrated, thegate will move pei-pendicularly, or nearly so, upward from the positionillustrated in Figal for a short distance, after which the upper end ofupright E will move forward and upward in guide l). Roller F willcontinue to move perpend icularly for some distance farther, and therebythe lower end or the bottom of the gate will move backward as the gaterises until roller F-has reached or nearly reached the upper end ofguide l), when, roller F following the direction of the upper part ofguide 1)', the gate will rotate, or nearly. so, around the upper end ofguide D, or around roller F, stationary in said guide I). lly thepeculiar motion thus given danger-gate A A all danger of injury topersons or things on roadway X or sidewalk Y is to a great degree, ifnot entirely, obviated, and thus the objection heretofore urged toautomatic dan ger-gates is removed. Another advantage gained by me inthis movement of the gate is, that less motion. `is required in rod Gand connecting-levers to raise the gate a sufficient distance to allowthe passage of vehicles underi'ieath the same than would be if the gatewere lifted vertically the entire distance.

It will be evident to one familiar to dangergates operated automaticallyby the movenient of a drawbridge that a second rotatory rod, G, may beplaced below the surface of the roadway, lever I placed thereon, to beactuated by a cam placed underneath the bridge, and of substaiitiallythe same shape as cam M, hereinbefore described, and the said rod G willthereby be operated in the same manner as is rod G in the preciseconstruction hereinbefore described, and that cable K will be operatedby being placed on drum K, secured to rod G. I have illustrated thisconstruction by the dotted lines in Fig. l.

Having thus described my invention, its construction and operation, whatI claim, and desire to secure by Letters Iatent, is-

l. In a danger-gate, the combination of a gate adapted to be raised andlowered, posts having guides therein, projections on said gate enteringsaid guides and controlled thereby, and a rotatory rod having a'leverthereon secured at one end to said rod and connected at the other endthereof to the gate, whereby the rotation of said rod. will raise saidgate in a path determined by the said guides and projections enteringtherein, all substantially as described.

f2. In a danger-gate, the combination of a gate adapted to be raised andlowered, posts having' guides therein, projections on said gatecontrolled by said guides, a rotatory rod having a lever rigidly securedat one end thereof to said rotatory rod and at the other end secured tosaid gate, and a lever secured to said rotatory rod and adapted toengage with a cam placed on a draw-bridge in the operating of saiddrawbridge, whereby, when the said bridge is open ed and closed, thesaid gate is raised and lowered in a path determined by said guides andprojections controlled thereby, all substantially as described.

3. In a danger-gate, the combination of a gate, A A', posts B I3, havingguides D D therein, projections f j' on said gate, a rod, G, havinglever I thereon adapted to be operated by a cam, M., secured on adraw-bridge, and levers II II, secured at one end to said rod G and atthe other end to said gate A A,where by the opening and closing ot' thedrawbridge will. remove said dan ger-gate. from said roadway or replaceth e same, all substantially as described.

HENRY BODDTKER.

Witnesses:

JOHN ,'loI-INsoN, CHARLES T. BnowN.

IOO

IIO

